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How many working days in year 2121?

Here is the detail of the calculation:

Because 2121 is not a leap year, it has 365 days.

Let's remove 52 saturdays and 52 sundays. It remains 261 days.

Now, let's remove 7 public holidays that do not fall during a weekend and we obtain 254 working days in 2121.

Here is the list of these 7 public holidays:

1. New Year's Day : среда, 1 январь, 2121
2. Good Friday : пятница, 4 апрель, 2121
3. Easter Monday : понедельник, 7 апрель, 2121
4. Ascension Day : четверг, 15 май, 2121
5. Pentecost Monday : понедельник, 26 май, 2121
6. Christmas Day : четверг, 25 декабрь, 2121
7. Boxing Day : пятница, 26 декабрь, 2121

And here are the 3 public holidays falling on a weekend:

1. Easter Sunday : воскресенье, 6 апрель, 2121
2. King's Day : суббота, 26 апрель, 2121
3. Pentecost Sunday : воскресенье, 25 май, 2121